searching backwards in a string

[Mark McEahern]

Sorry, the sample I posted doesn't correctly adjust for the difference
between the length of the word and the last index of the word.  Replace
this:

>   # Express location relative to original orientation of word.
>   start = len(s) - m.start()

with:

    # Express location relative to original orientation of word.
    lastIndex = len(s) - 1
    start = lastIndex - m.start()
    print "%s found backwards in %s at %d." % (pattern, s, start)

// mark